Home / 38,265.80-52,815.36-21,276

Finding the Fourth Proportional to 38,265.80, 52,815.36 and 21,276

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Solution

The fourth proportional to 38,265.80, 52,815.36 and 21,276 is: 29,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,265.80 : 52,815.36 = 21,276 : x
  2. Step 2: Convert to fraction form
    38,265.80/52,815.36 = 21,276/x
  3. Step 3: Cross multiply
    38,265.80x = 52,815.36 × 21,276
  4. Step 4: Simplify right side
    38,265.80x = 1,123,699,599.36
  5. Step 5: Solve for x
    x = 1,123,699,599.36/38,265.80
  6. Step 6: Final answer
    x = 29,365.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.